* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
}

.wrap {
    width: 1500px;
    margin: 0 auto;
}

.nav {
    width: 100%;
    height: 75px;
    background: linear-gradient(0deg, rgb(245, 245, 245), white, rgb(245, 245, 245));
}

/* 伪元素清除浮动 */
.nav::after {
    content: "";
    clear: both;
    display: block;
    height: 0;
}

.nav>ul>li {
    float: left;
    position: relative;
}

.nav>ul>li>img {
    display: block;
    margin: 10px 41px 9px 60px;
}

.nav>ul>li>a {
    width: 150px;
    height: 75px;
    color: black;
    display: block;
    text-align: center;
    line-height: 75px;
    font-size: 12px;
    box-sizing: border-box;
    border-right: 1px solid rgb(166, 166, 166);
}

.nav>ul>li>a:hover {
    background: rgb(234, 234, 234);
}

/* 二级导航栏 */
.list {
    clear: both;
    display: none;
    position: absolute;
    top: 75px;
    z-index: 1;
}

.list ul li a {
    width: 150px;
    height: 50px;
    color: blueviolet;
    display: block;
    text-align: center;
    line-height: 50px;
    font-size: 14px;
    background: linear-gradient(0deg, rgb(243, 243, 243), white, rgb(243, 243, 243));
    box-sizing: border-box;
}

.nav>ul>li:hover .list {
    display: block;
}

.nav>ul>li:hover .list ul li a:hover {
    background: rgb(234, 234, 234);
}

.photo {
    width: 100%;
    height: 520px;
    background: url("../images/新闻列表.png") no-repeat;
    position: relative;
}

.photo span {
    color: #fff;
    font-size: 12px;
    position: absolute;
}

.photo span:nth-child(1) {
    top: 15px;
    left: 310px;
}

.photo span:nth-child(2) {
    font-size: 16px;
    top: 12px;
    left: 373px;
}

.photo span:nth-child(3) {
    top: 15px;
    left: 390px;
}

.photo span:nth-child(4) {
    font-size: 48px;
    font-weight: bold;
    text-shadow: 1px 1px 2px #000;
    top: 140px;
    left: 315px;
}

.photo span:nth-child(5) {
    font-size: 18px;
    top: 200px;
    left: 315px;
    font-style: italic;
}

main {
    width: 100%;
    height: 930px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

main .content_top {
    margin: 85px 0 65px;
    position: relative;
}

main .content_top p:first-child {
    width: 670px;
    height: 25px;
    color: rgb(157, 157, 157);
    font-size: 20px;
    font-style: italic;
    font-family: "Simsun";
    font-weight: 900;
    text-indent: 10px;
    background-color: rgb(236, 236, 236);
}

main .content_top p:last-child {
    color: #000;
    font-size: 22px;
    font-weight: 500;
    position: absolute;
    top: -30px;
    left: -100px;
}

main .content {
    width: 670px;
    /* margin: 0 auto; */
    padding-bottom: 25px;
    border-bottom: 1px solid #000;
}

main .content .content_circle {
    width: 670px;
    height: 72px;
    font-size: 12px;
    background-color: rgb(247, 247, 247);
    border-top-left-radius: 36px;
    border-bottom-left-radius: 36px;
    margin-bottom: 40px;
}

/* 悬浮效果 */
main .content .content_circle:hover {
    color: #fff;
    background-color: rgb(164, 164, 164);
}

main .content .content_circle:hover div:first-child {
    opacity: 1;
}

main .content .content_circle div {
    float: left;
}

main .content .content_circle div:first-child {
    width: 72px;
    height: 72px;
    color: #fff;
    background-color: rgb(255, 153, 35);
    border-radius: 50%;
    text-align: center;
    line-height: 72px;
    opacity: 0.5;
}

main .content .content_circle div:last-child {
    padding: 16px 30px;
}

main .content .content_circle div p {
    line-height: 20px;
}

main .content_bottom {
    margin-top: 25px;
}

main .content_bottom button {
    height: 22px;
    background-color: #fff;
    font-size: 12px;
    vertical-align: middle;
    border: 1px solid rgb(185, 185, 185);
}

/* 设置前面3个按钮 */
main .content_bottom button:nth-child(-n+3) {
    padding: 0 8px;
    margin-right: 5px;
}

/* 设置第4个开始后面的全部按钮 */
main .content_bottom button:nth-child(n+4) {
    padding: 0 10px;
    margin-right: 8px;
}

/* 设置按钮的悬浮效果*/
main .content_bottom button:hover {
    border: 1px solid transparent;
}

footer {
    width: 100%;
    height: 75px;
    background-color: #000;
    color: #fff;
    font-size: 12px;
    line-height: 75px;
}

footer img {
    height: 16px;
    display: inline-block;
    vertical-align: middle;
    margin-left: 270px;
}

footer a {
    color: #fff;
    vertical-align: middle;
    margin: 0 10px;
}

footer span {
    vertical-align: middle;
    margin-left: 300px;
}